Finding the Fourth Proportional to 37,399.88, 56,109.54 and 17,678

Step by Step Solution

1. Step 1: Write the proportion equation
   37,399.88 : 56,109.54 = 17,678 : x
2. Step 2: Convert to fraction form
   37,399.88/56,109.54 = 17,678/x
3. Step 3: Cross multiply
   37,399.88x = 56,109.54 × 17,678
4. Step 4: Simplify right side
   37,399.88x = 991,904,448.12
5. Step 5: Solve for x
   x = 991,904,448.12/37,399.88
6. Step 6: Final answer
   x = 26,521.59